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<pre><span class="sourceLineNo">001</span>/**<a name="line.1"></a>
<span class="sourceLineNo">002</span> * Copyright (c) 2004-2011 QOS.ch<a name="line.2"></a>
<span class="sourceLineNo">003</span> * All rights reserved.<a name="line.3"></a>
<span class="sourceLineNo">004</span> *<a name="line.4"></a>
<span class="sourceLineNo">005</span> * Permission is hereby granted, free  of charge, to any person obtaining<a name="line.5"></a>
<span class="sourceLineNo">006</span> * a  copy  of this  software  and  associated  documentation files  (the<a name="line.6"></a>
<span class="sourceLineNo">007</span> * "Software"), to  deal in  the Software without  restriction, including<a name="line.7"></a>
<span class="sourceLineNo">008</span> * without limitation  the rights to  use, copy, modify,  merge, publish,<a name="line.8"></a>
<span class="sourceLineNo">009</span> * distribute,  sublicense, and/or sell  copies of  the Software,  and to<a name="line.9"></a>
<span class="sourceLineNo">010</span> * permit persons to whom the Software  is furnished to do so, subject to<a name="line.10"></a>
<span class="sourceLineNo">011</span> * the following conditions:<a name="line.11"></a>
<span class="sourceLineNo">012</span> *<a name="line.12"></a>
<span class="sourceLineNo">013</span> * The  above  copyright  notice  and  this permission  notice  shall  be<a name="line.13"></a>
<span class="sourceLineNo">014</span> * included in all copies or substantial portions of the Software.<a name="line.14"></a>
<span class="sourceLineNo">015</span> *<a name="line.15"></a>
<span class="sourceLineNo">016</span> * THE  SOFTWARE IS  PROVIDED  "AS  IS", WITHOUT  WARRANTY  OF ANY  KIND,<a name="line.16"></a>
<span class="sourceLineNo">017</span> * EXPRESS OR  IMPLIED, INCLUDING  BUT NOT LIMITED  TO THE  WARRANTIES OF<a name="line.17"></a>
<span class="sourceLineNo">018</span> * MERCHANTABILITY,    FITNESS    FOR    A   PARTICULAR    PURPOSE    AND<a name="line.18"></a>
<span class="sourceLineNo">019</span> * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE<a name="line.19"></a>
<span class="sourceLineNo">020</span> * LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION<a name="line.20"></a>
<span class="sourceLineNo">021</span> * OF CONTRACT, TORT OR OTHERWISE,  ARISING FROM, OUT OF OR IN CONNECTION<a name="line.21"></a>
<span class="sourceLineNo">022</span> * WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.<a name="line.22"></a>
<span class="sourceLineNo">023</span> *<a name="line.23"></a>
<span class="sourceLineNo">024</span> */<a name="line.24"></a>
<span class="sourceLineNo">025</span>package org.slf4j.profiler;<a name="line.25"></a>
<span class="sourceLineNo">026</span><a name="line.26"></a>
<span class="sourceLineNo">027</span>import java.util.ArrayList;<a name="line.27"></a>
<span class="sourceLineNo">028</span>import java.util.List;<a name="line.28"></a>
<span class="sourceLineNo">029</span><a name="line.29"></a>
<span class="sourceLineNo">030</span>import org.slf4j.Logger;<a name="line.30"></a>
<span class="sourceLineNo">031</span>import org.slf4j.Marker;<a name="line.31"></a>
<span class="sourceLineNo">032</span>import org.slf4j.MarkerFactory;<a name="line.32"></a>
<span class="sourceLineNo">033</span><a name="line.33"></a>
<span class="sourceLineNo">034</span>// +  Profiler [BAS]<a name="line.34"></a>
<span class="sourceLineNo">035</span>// |-- elapsed time            [doX]     0 milliseconds.<a name="line.35"></a>
<span class="sourceLineNo">036</span>// |-- elapsed time        [doYYYYY]    56 milliseconds.<a name="line.36"></a>
<span class="sourceLineNo">037</span>// |--+ Profiler Y<a name="line.37"></a>
<span class="sourceLineNo">038</span>//    |-- elapsed time            [doZ]    21 milliseconds.<a name="line.38"></a>
<span class="sourceLineNo">039</span>//    |-- elapsed time            [doZ]    21 milliseconds.<a name="line.39"></a>
<span class="sourceLineNo">040</span>//    |-- Total elapsed time        [Y]    78 milliseconds.<a name="line.40"></a>
<span class="sourceLineNo">041</span>// |-- elapsed time            [doZ]    21 milliseconds.<a name="line.41"></a>
<span class="sourceLineNo">042</span>// |-- Total elapsed time      [BAS]    78 milliseconds.<a name="line.42"></a>
<span class="sourceLineNo">043</span><a name="line.43"></a>
<span class="sourceLineNo">044</span>/**<a name="line.44"></a>
<span class="sourceLineNo">045</span> * A poor man's profiler to measure the time elapsed performing some lengthy<a name="line.45"></a>
<span class="sourceLineNo">046</span> * task.<a name="line.46"></a>
<span class="sourceLineNo">047</span> * <a name="line.47"></a>
<span class="sourceLineNo">048</span> * @author Ceki G&amp;uuml;lc&amp;uuml;<a name="line.48"></a>
<span class="sourceLineNo">049</span> */<a name="line.49"></a>
<span class="sourceLineNo">050</span>public class Profiler implements TimeInstrument {<a name="line.50"></a>
<span class="sourceLineNo">051</span><a name="line.51"></a>
<span class="sourceLineNo">052</span>    final static String PROFILER_MARKER_NAME = "PROFILER";<a name="line.52"></a>
<span class="sourceLineNo">053</span><a name="line.53"></a>
<span class="sourceLineNo">054</span>    final static int MIN_SW_NAME_LENGTH = 24;<a name="line.54"></a>
<span class="sourceLineNo">055</span>    final static int MIN_SW_ELAPSED_TIME_NUMBER_LENGTH = 9;<a name="line.55"></a>
<span class="sourceLineNo">056</span><a name="line.56"></a>
<span class="sourceLineNo">057</span>    final String name;<a name="line.57"></a>
<span class="sourceLineNo">058</span>    final StopWatch globalStopWatch;<a name="line.58"></a>
<span class="sourceLineNo">059</span><a name="line.59"></a>
<span class="sourceLineNo">060</span>    List&lt;TimeInstrument&gt; childTimeInstrumentList = new ArrayList&lt;TimeInstrument&gt;();<a name="line.60"></a>
<span class="sourceLineNo">061</span><a name="line.61"></a>
<span class="sourceLineNo">062</span>    // optional field<a name="line.62"></a>
<span class="sourceLineNo">063</span>    ProfilerRegistry profilerRegistry;<a name="line.63"></a>
<span class="sourceLineNo">064</span>    // optional field<a name="line.64"></a>
<span class="sourceLineNo">065</span>    Logger logger;<a name="line.65"></a>
<span class="sourceLineNo">066</span><a name="line.66"></a>
<span class="sourceLineNo">067</span>    public Profiler(String name) {<a name="line.67"></a>
<span class="sourceLineNo">068</span>        this.name = name;<a name="line.68"></a>
<span class="sourceLineNo">069</span>        this.globalStopWatch = new StopWatch(name);<a name="line.69"></a>
<span class="sourceLineNo">070</span>    }<a name="line.70"></a>
<span class="sourceLineNo">071</span><a name="line.71"></a>
<span class="sourceLineNo">072</span>    public String getName() {<a name="line.72"></a>
<span class="sourceLineNo">073</span>        return name;<a name="line.73"></a>
<span class="sourceLineNo">074</span>    }<a name="line.74"></a>
<span class="sourceLineNo">075</span><a name="line.75"></a>
<span class="sourceLineNo">076</span>    public ProfilerRegistry getProfilerRegistry() {<a name="line.76"></a>
<span class="sourceLineNo">077</span>        return profilerRegistry;<a name="line.77"></a>
<span class="sourceLineNo">078</span>    }<a name="line.78"></a>
<span class="sourceLineNo">079</span><a name="line.79"></a>
<span class="sourceLineNo">080</span>    public void registerWith(ProfilerRegistry profilerRegistry) {<a name="line.80"></a>
<span class="sourceLineNo">081</span>        if (profilerRegistry == null) {<a name="line.81"></a>
<span class="sourceLineNo">082</span>            return;<a name="line.82"></a>
<span class="sourceLineNo">083</span>        }<a name="line.83"></a>
<span class="sourceLineNo">084</span>        this.profilerRegistry = profilerRegistry;<a name="line.84"></a>
<span class="sourceLineNo">085</span>        profilerRegistry.put(this);<a name="line.85"></a>
<span class="sourceLineNo">086</span>    }<a name="line.86"></a>
<span class="sourceLineNo">087</span><a name="line.87"></a>
<span class="sourceLineNo">088</span>    public Logger getLogger() {<a name="line.88"></a>
<span class="sourceLineNo">089</span>        return logger;<a name="line.89"></a>
<span class="sourceLineNo">090</span>    }<a name="line.90"></a>
<span class="sourceLineNo">091</span><a name="line.91"></a>
<span class="sourceLineNo">092</span>    public void setLogger(Logger logger) {<a name="line.92"></a>
<span class="sourceLineNo">093</span>        this.logger = logger;<a name="line.93"></a>
<span class="sourceLineNo">094</span>    }<a name="line.94"></a>
<span class="sourceLineNo">095</span><a name="line.95"></a>
<span class="sourceLineNo">096</span>    /**<a name="line.96"></a>
<span class="sourceLineNo">097</span>     * Starts a child stop watch and stops any previously started time<a name="line.97"></a>
<span class="sourceLineNo">098</span>     * instruments.<a name="line.98"></a>
<span class="sourceLineNo">099</span>     */<a name="line.99"></a>
<span class="sourceLineNo">100</span>    public void start(String name) {<a name="line.100"></a>
<span class="sourceLineNo">101</span>        stopLastTimeInstrument();<a name="line.101"></a>
<span class="sourceLineNo">102</span>        StopWatch childSW = new StopWatch(name);<a name="line.102"></a>
<span class="sourceLineNo">103</span>        childTimeInstrumentList.add(childSW);<a name="line.103"></a>
<span class="sourceLineNo">104</span>    }<a name="line.104"></a>
<span class="sourceLineNo">105</span><a name="line.105"></a>
<span class="sourceLineNo">106</span>    public Profiler startNested(String name) {<a name="line.106"></a>
<span class="sourceLineNo">107</span>        stopLastTimeInstrument();<a name="line.107"></a>
<span class="sourceLineNo">108</span>        Profiler nestedProfiler = new Profiler(name);<a name="line.108"></a>
<span class="sourceLineNo">109</span>        nestedProfiler.registerWith(profilerRegistry);<a name="line.109"></a>
<span class="sourceLineNo">110</span>        nestedProfiler.setLogger(logger);<a name="line.110"></a>
<span class="sourceLineNo">111</span>        childTimeInstrumentList.add(nestedProfiler);<a name="line.111"></a>
<span class="sourceLineNo">112</span>        return nestedProfiler;<a name="line.112"></a>
<span class="sourceLineNo">113</span>    }<a name="line.113"></a>
<span class="sourceLineNo">114</span><a name="line.114"></a>
<span class="sourceLineNo">115</span>    TimeInstrument getLastTimeInstrument() {<a name="line.115"></a>
<span class="sourceLineNo">116</span>        if (childTimeInstrumentList.size() &gt; 0) {<a name="line.116"></a>
<span class="sourceLineNo">117</span>            return childTimeInstrumentList.get(childTimeInstrumentList.size() - 1);<a name="line.117"></a>
<span class="sourceLineNo">118</span>        } else {<a name="line.118"></a>
<span class="sourceLineNo">119</span>            return null;<a name="line.119"></a>
<span class="sourceLineNo">120</span>        }<a name="line.120"></a>
<span class="sourceLineNo">121</span>    }<a name="line.121"></a>
<span class="sourceLineNo">122</span><a name="line.122"></a>
<span class="sourceLineNo">123</span>    void stopLastTimeInstrument() {<a name="line.123"></a>
<span class="sourceLineNo">124</span>        TimeInstrument last = getLastTimeInstrument();<a name="line.124"></a>
<span class="sourceLineNo">125</span>        if (last != null) {<a name="line.125"></a>
<span class="sourceLineNo">126</span>            last.stop();<a name="line.126"></a>
<span class="sourceLineNo">127</span>        }<a name="line.127"></a>
<span class="sourceLineNo">128</span>    }<a name="line.128"></a>
<span class="sourceLineNo">129</span><a name="line.129"></a>
<span class="sourceLineNo">130</span>    // void stopNestedProfilers() {<a name="line.130"></a>
<span class="sourceLineNo">131</span>    // for (Object child : childTimeInstrumentList) {<a name="line.131"></a>
<span class="sourceLineNo">132</span>    // if (child instanceof Profiler)<a name="line.132"></a>
<span class="sourceLineNo">133</span>    // ((Profiler) child).stop();<a name="line.133"></a>
<span class="sourceLineNo">134</span>    // }<a name="line.134"></a>
<span class="sourceLineNo">135</span>    // }<a name="line.135"></a>
<span class="sourceLineNo">136</span><a name="line.136"></a>
<span class="sourceLineNo">137</span>    public long elapsedTime() {<a name="line.137"></a>
<span class="sourceLineNo">138</span>        return globalStopWatch.elapsedTime();<a name="line.138"></a>
<span class="sourceLineNo">139</span>    }<a name="line.139"></a>
<span class="sourceLineNo">140</span><a name="line.140"></a>
<span class="sourceLineNo">141</span>    public TimeInstrument stop() {<a name="line.141"></a>
<span class="sourceLineNo">142</span>        stopLastTimeInstrument();<a name="line.142"></a>
<span class="sourceLineNo">143</span>        globalStopWatch.stop();<a name="line.143"></a>
<span class="sourceLineNo">144</span>        return this;<a name="line.144"></a>
<span class="sourceLineNo">145</span>    }<a name="line.145"></a>
<span class="sourceLineNo">146</span><a name="line.146"></a>
<span class="sourceLineNo">147</span>    public TimeInstrumentStatus getStatus() {<a name="line.147"></a>
<span class="sourceLineNo">148</span>        return globalStopWatch.status;<a name="line.148"></a>
<span class="sourceLineNo">149</span>    }<a name="line.149"></a>
<span class="sourceLineNo">150</span><a name="line.150"></a>
<span class="sourceLineNo">151</span>    /**<a name="line.151"></a>
<span class="sourceLineNo">152</span>     * This method is used in tests.<a name="line.152"></a>
<span class="sourceLineNo">153</span>     */<a name="line.153"></a>
<span class="sourceLineNo">154</span>    void sanityCheck() throws IllegalStateException {<a name="line.154"></a>
<span class="sourceLineNo">155</span>        if (getStatus() != TimeInstrumentStatus.STOPPED) {<a name="line.155"></a>
<span class="sourceLineNo">156</span>            throw new IllegalStateException("time instrument [" + getName() + " is not stopped");<a name="line.156"></a>
<span class="sourceLineNo">157</span>        }<a name="line.157"></a>
<span class="sourceLineNo">158</span><a name="line.158"></a>
<span class="sourceLineNo">159</span>        long totalElapsed = globalStopWatch.elapsedTime();<a name="line.159"></a>
<span class="sourceLineNo">160</span>        long childTotal = 0;<a name="line.160"></a>
<span class="sourceLineNo">161</span><a name="line.161"></a>
<span class="sourceLineNo">162</span>        for (TimeInstrument ti : childTimeInstrumentList) {<a name="line.162"></a>
<span class="sourceLineNo">163</span>            childTotal += ti.elapsedTime();<a name="line.163"></a>
<span class="sourceLineNo">164</span>            if (ti.getStatus() != TimeInstrumentStatus.STOPPED) {<a name="line.164"></a>
<span class="sourceLineNo">165</span>                throw new IllegalStateException("time instrument [" + ti.getName() + " is not stopped");<a name="line.165"></a>
<span class="sourceLineNo">166</span>            }<a name="line.166"></a>
<span class="sourceLineNo">167</span>            if (ti instanceof Profiler) {<a name="line.167"></a>
<span class="sourceLineNo">168</span>                Profiler nestedProfiler = (Profiler) ti;<a name="line.168"></a>
<span class="sourceLineNo">169</span>                nestedProfiler.sanityCheck();<a name="line.169"></a>
<span class="sourceLineNo">170</span>            }<a name="line.170"></a>
<span class="sourceLineNo">171</span>        }<a name="line.171"></a>
<span class="sourceLineNo">172</span>        if (totalElapsed &lt; childTotal) {<a name="line.172"></a>
<span class="sourceLineNo">173</span>            throw new IllegalStateException("children have a higher accumulated elapsed time");<a name="line.173"></a>
<span class="sourceLineNo">174</span>        }<a name="line.174"></a>
<span class="sourceLineNo">175</span>    }<a name="line.175"></a>
<span class="sourceLineNo">176</span><a name="line.176"></a>
<span class="sourceLineNo">177</span>    static String TOP_PROFILER_FIRST_PREFIX = "+";<a name="line.177"></a>
<span class="sourceLineNo">178</span>    static String NESTED_PROFILER_FIRST_PREFIX = "|---+";<a name="line.178"></a>
<span class="sourceLineNo">179</span>    static String TOTAL_ELAPSED = " Total        ";<a name="line.179"></a>
<span class="sourceLineNo">180</span>    static String SUBTOTAL_ELAPSED = " Subtotal     ";<a name="line.180"></a>
<span class="sourceLineNo">181</span>    static String ELAPSED_TIME = " elapsed time ";<a name="line.181"></a>
<span class="sourceLineNo">182</span><a name="line.182"></a>
<span class="sourceLineNo">183</span>    public void print() {<a name="line.183"></a>
<span class="sourceLineNo">184</span>        System.out.println(toString());<a name="line.184"></a>
<span class="sourceLineNo">185</span>    }<a name="line.185"></a>
<span class="sourceLineNo">186</span><a name="line.186"></a>
<span class="sourceLineNo">187</span>    @Override<a name="line.187"></a>
<span class="sourceLineNo">188</span>    public String toString() {<a name="line.188"></a>
<span class="sourceLineNo">189</span>        DurationUnit du = Util.selectDurationUnitForDisplay(globalStopWatch);<a name="line.189"></a>
<span class="sourceLineNo">190</span>        return buildProfilerString(du, TOP_PROFILER_FIRST_PREFIX, TOTAL_ELAPSED, "");<a name="line.190"></a>
<span class="sourceLineNo">191</span>    }<a name="line.191"></a>
<span class="sourceLineNo">192</span><a name="line.192"></a>
<span class="sourceLineNo">193</span>    public void log() {<a name="line.193"></a>
<span class="sourceLineNo">194</span>        Marker profilerMarker = MarkerFactory.getMarker(PROFILER_MARKER_NAME);<a name="line.194"></a>
<span class="sourceLineNo">195</span>        if (logger == null) {<a name="line.195"></a>
<span class="sourceLineNo">196</span>            throw new NullPointerException("If you invoke the log() method, then you must associate a logger with this profiler.");<a name="line.196"></a>
<span class="sourceLineNo">197</span>        }<a name="line.197"></a>
<span class="sourceLineNo">198</span>        if (logger.isDebugEnabled(profilerMarker)) {<a name="line.198"></a>
<span class="sourceLineNo">199</span>            DurationUnit du = Util.selectDurationUnitForDisplay(globalStopWatch);<a name="line.199"></a>
<span class="sourceLineNo">200</span>            String r = buildProfilerString(du, TOP_PROFILER_FIRST_PREFIX, TOTAL_ELAPSED, "");<a name="line.200"></a>
<span class="sourceLineNo">201</span>            logger.debug(profilerMarker, SpacePadder.LINE_SEP + r);<a name="line.201"></a>
<span class="sourceLineNo">202</span>        }<a name="line.202"></a>
<span class="sourceLineNo">203</span>    }<a name="line.203"></a>
<span class="sourceLineNo">204</span><a name="line.204"></a>
<span class="sourceLineNo">205</span>    /**<a name="line.205"></a>
<span class="sourceLineNo">206</span>     * Return a copy of the child instrument list for this Profiler instance.<a name="line.206"></a>
<span class="sourceLineNo">207</span>     * <a name="line.207"></a>
<span class="sourceLineNo">208</span>     * @return a copy of this instance's child time instrument list<a name="line.208"></a>
<span class="sourceLineNo">209</span>     * @since 1.5.9<a name="line.209"></a>
<span class="sourceLineNo">210</span>     */<a name="line.210"></a>
<span class="sourceLineNo">211</span>    public List&lt;TimeInstrument&gt; getCopyOfChildTimeInstruments() {<a name="line.211"></a>
<span class="sourceLineNo">212</span>        List&lt;TimeInstrument&gt; copy = new ArrayList&lt;TimeInstrument&gt;(childTimeInstrumentList);<a name="line.212"></a>
<span class="sourceLineNo">213</span>        return copy;<a name="line.213"></a>
<span class="sourceLineNo">214</span>    }<a name="line.214"></a>
<span class="sourceLineNo">215</span><a name="line.215"></a>
<span class="sourceLineNo">216</span>    /**<a name="line.216"></a>
<span class="sourceLineNo">217</span>     * Return a copy of the global stopwatch of this Profiler instance.<a name="line.217"></a>
<span class="sourceLineNo">218</span>     * <a name="line.218"></a>
<span class="sourceLineNo">219</span>     * @return a copy of this instance's global stop watch<a name="line.219"></a>
<span class="sourceLineNo">220</span>     * @since 1.5.9<a name="line.220"></a>
<span class="sourceLineNo">221</span>     */<a name="line.221"></a>
<span class="sourceLineNo">222</span>    public StopWatch getCopyOfGlobalStopWatch() {<a name="line.222"></a>
<span class="sourceLineNo">223</span>        StopWatch copy = new StopWatch(globalStopWatch);<a name="line.223"></a>
<span class="sourceLineNo">224</span>        return copy;<a name="line.224"></a>
<span class="sourceLineNo">225</span>    }<a name="line.225"></a>
<span class="sourceLineNo">226</span><a name="line.226"></a>
<span class="sourceLineNo">227</span>    private String buildProfilerString(DurationUnit du, String firstPrefix, String label, String indentation) {<a name="line.227"></a>
<span class="sourceLineNo">228</span>        StringBuilder buf = new StringBuilder();<a name="line.228"></a>
<span class="sourceLineNo">229</span><a name="line.229"></a>
<span class="sourceLineNo">230</span>        buf.append(firstPrefix);<a name="line.230"></a>
<span class="sourceLineNo">231</span>        buf.append(" Profiler [");<a name="line.231"></a>
<span class="sourceLineNo">232</span>        buf.append(name);<a name="line.232"></a>
<span class="sourceLineNo">233</span>        buf.append("]");<a name="line.233"></a>
<span class="sourceLineNo">234</span>        buf.append(SpacePadder.LINE_SEP);<a name="line.234"></a>
<span class="sourceLineNo">235</span>        for (TimeInstrument child : childTimeInstrumentList) {<a name="line.235"></a>
<span class="sourceLineNo">236</span>            if (child instanceof StopWatch) {<a name="line.236"></a>
<span class="sourceLineNo">237</span>                buildStopWatchString(buf, du, ELAPSED_TIME, indentation, (StopWatch) child);<a name="line.237"></a>
<span class="sourceLineNo">238</span>            } else if (child instanceof Profiler) {<a name="line.238"></a>
<span class="sourceLineNo">239</span>                Profiler profiler = (Profiler) child;<a name="line.239"></a>
<span class="sourceLineNo">240</span>                String subString = profiler.buildProfilerString(du, NESTED_PROFILER_FIRST_PREFIX, SUBTOTAL_ELAPSED, indentation + "    ");<a name="line.240"></a>
<span class="sourceLineNo">241</span>                buf.append(subString);<a name="line.241"></a>
<span class="sourceLineNo">242</span>                buildStopWatchString(buf, du, ELAPSED_TIME, indentation, profiler.globalStopWatch);<a name="line.242"></a>
<span class="sourceLineNo">243</span>            }<a name="line.243"></a>
<span class="sourceLineNo">244</span>        }<a name="line.244"></a>
<span class="sourceLineNo">245</span>        buildStopWatchString(buf, du, label, indentation, globalStopWatch);<a name="line.245"></a>
<span class="sourceLineNo">246</span>        return buf.toString();<a name="line.246"></a>
<span class="sourceLineNo">247</span>    }<a name="line.247"></a>
<span class="sourceLineNo">248</span><a name="line.248"></a>
<span class="sourceLineNo">249</span>    private static void buildStopWatchString(StringBuilder buf, DurationUnit du, String prefix, String indentation, StopWatch sw) {<a name="line.249"></a>
<span class="sourceLineNo">250</span><a name="line.250"></a>
<span class="sourceLineNo">251</span>        buf.append(indentation);<a name="line.251"></a>
<span class="sourceLineNo">252</span>        buf.append("|--");<a name="line.252"></a>
<span class="sourceLineNo">253</span>        buf.append(prefix);<a name="line.253"></a>
<span class="sourceLineNo">254</span>        SpacePadder.leftPad(buf, "[" + sw.getName() + "]", MIN_SW_NAME_LENGTH);<a name="line.254"></a>
<span class="sourceLineNo">255</span>        buf.append(" ");<a name="line.255"></a>
<span class="sourceLineNo">256</span>        String timeStr = Util.durationInDurationUnitsAsStr(sw.elapsedTime(), du);<a name="line.256"></a>
<span class="sourceLineNo">257</span>        SpacePadder.leftPad(buf, timeStr, MIN_SW_ELAPSED_TIME_NUMBER_LENGTH);<a name="line.257"></a>
<span class="sourceLineNo">258</span>        buf.append(" ");<a name="line.258"></a>
<span class="sourceLineNo">259</span>        Util.appendDurationUnitAsStr(buf, du);<a name="line.259"></a>
<span class="sourceLineNo">260</span>        buf.append(SpacePadder.LINE_SEP);<a name="line.260"></a>
<span class="sourceLineNo">261</span>    }<a name="line.261"></a>
<span class="sourceLineNo">262</span>}<a name="line.262"></a>




























































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